{"error":{"code":"internal_api_error_Error","info":"[abcdd71598973b33b0f953ef] Exception caught: Call to undefined method MediaWiki\\Language\\Language::isValidBuiltInCode()","errorclass":"Error","*":"Error at /var/www/html/www.gregorianum.org/htdocs/extensions/cldr/includes/LanguageNames.php(90)\nfrom /var/www/html/www.gregorianum.org/htdocs/extensions/cldr/includes/LanguageNames.php(90)\n#0 /var/www/html/www.gregorianum.org/htdocs/extensions/cldr/includes/LanguageNames.php(34): LanguageNames::loadLanguage()\n#1 /var/www/html/www.gregorianum.org/htdocs/extensions/cldr/includes/LanguageNames.php(130): LanguageNames::getNames()\n#2 /var/www/html/www.gregorianum.org/htdocs/includes/HookContainer/HookContainer.php(134): LanguageNames::coreHook()\n#3 /var/www/html/www.gregorianum.org/htdocs/includes/HookContainer/HookRunner.php(2588): MediaWiki\\HookContainer\\HookContainer->run()\n#4 /var/www/html/www.gregorianum.org/htdocs/includes/language/LanguageNameUtils.php(214): MediaWiki\\HookContainer\\HookRunner->onLanguageGetTranslatedLanguageNames()\n#5 /var/www/html/www.gregorianum.org/htdocs/includes/language/LanguageNameUtils.php(191): MediaWiki\\Language\\LanguageNameUtils->getLanguageNamesUncached()\n#6 /var/www/html/www.gregorianum.org/htdocs/includes/libs/objectcache/BagOStuff.php(248): MediaWiki\\Language\\LanguageNameUtils->MediaWiki\\Language\\{closure}()\n#7 /var/www/html/www.gregorianum.org/htdocs/includes/language/LanguageNameUtils.php(187): Wikimedia\\ObjectCache\\BagOStuff->getWithSetCallback()\n#8 /var/www/html/www.gregorianum.org/htdocs/includes/api/ApiQueryLanguageinfo.php(74): MediaWiki\\Language\\LanguageNameUtils->getLanguageNames()\n#9 /var/www/html/www.gregorianum.org/htdocs/includes/api/ApiQuery.php(729): MediaWiki\\Api\\ApiQueryLanguageinfo->execute()\n#10 /var/www/html/www.gregorianum.org/htdocs/includes/api/ApiMain.php(2039): MediaWiki\\Api\\ApiQuery->execute()\n#11 /var/www/html/www.gregorianum.org/htdocs/includes/api/ApiMain.php(947): MediaWiki\\Api\\ApiMain->executeAction()\n#12 /var/www/html/www.gregorianum.org/htdocs/includes/api/ApiMain.php(918): MediaWiki\\Api\\ApiMain->executeActionWithErrorHandling()\n#13 /var/www/html/www.gregorianum.org/htdocs/includes/api/ApiEntryPoint.php(138): MediaWiki\\Api\\ApiMain->execute()\n#14 /var/www/html/www.gregorianum.org/htdocs/includes/MediaWikiEntryPoint.php(184): MediaWiki\\Api\\ApiEntryPoint->execute()\n#15 /var/www/html/www.gregorianum.org/htdocs/api.php(30): MediaWiki\\MediaWikiEntryPoint->run()\n#16 {main}"}}